blob: 94b3596fc6453813f4a92d7aaed2290a853bb83c (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
#------------------------------------------------------------------------------
#
# GetInterruptState() function for ARM
#
# Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
# Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
# which accompanies this distribution. The full text of the license may be found at
# http://opensource.org/licenses/bsd-license.php.
#
# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#
#------------------------------------------------------------------------------
.text
.p2align 2
GCC_ASM_EXPORT (GetInterruptState)
#/**
# Retrieves the current CPU interrupt state.
#
# Returns TRUE is interrupts are currently enabled. Otherwise
# returns FALSE.
#
# @retval TRUE CPU interrupts are enabled.
# @retval FALSE CPU interrupts are disabled.
#
#**/
#
#BOOLEAN
#EFIAPI
#GetInterruptState (
# VOID
# );
#
ASM_PFX(GetInterruptState):
mrs R0, CPSR
tst R0, #0x80 @Check if IRQ is enabled.
moveq R0, #1
movne R0, #0
bx LR
|